Class: BoPeep::Playlist

Inherits:
Object
  • Object
show all
Defined in:
lib/bopeep.rb

Defined Under Namespace

Classes: Start

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context) ⇒ Playlist

Returns a new instance of Playlist.



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# File 'lib/bopeep.rb', line 1592

def initialize(context)
  @context = context
  @start = @insert_at = Start.new
end

Instance Attribute Details

#insert_at ⇒ Object (readonly)

Returns the value of attribute insert_at.



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# File 'lib/bopeep.rb', line 1590

def insert_at
  @insert_at
end

Instance Method Details

#play ⇒ Object 



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# File 'lib/bopeep.rb', line 1597

def play
  playing = @insert_at = @start
  command = nil
  on_failure_command_used = false

  while playing.next
    playing = @insert_at = playing.next

    if command != playing.command
      command = playing.command

      playing.log_command
    end

    playing.log_step

    result = playing.run

    if result.failed?
      if @context.on_failure_command && on_failure_command_used == false
        playing.next = nil
        @context.on_failure_command.(@context)
        # Prevents infinite loops if `on_failure_command` fails
        on_failure_command_used = true
      else
        # This is redefined in `test/test_helper.rb` to avoid exiting the test process
        exit 1
      end
    end
  end
end

#queue(command_step) ⇒ Object 



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# File 'lib/bopeep.rb', line 1629

def queue(command_step)
  if @insert_at.next
    command_step.next = @insert_at.next
  end

  command_step.previous = @insert_at
  @insert_at.next = command_step

  @insert_at = command_step
end